B7 RS4 new coilpacks ? (obd reader inside - misfires)

B7 RS4 new coilpacks ? (obd reader inside - misfires)

Author
Discussion

stef1808

Original Poster:

950 posts

156 months

Tuesday 16th September 2014
quotequote all
hello, are these sympotoms what you expect from faulty coil packs ?

was driving on the motorway where the engine cuts out after some vibration and engine warning light on

pulled over and restarted engine and engine light was off but im convinved ive lost power

http://www.photobox.co.uk/my/photo?album_id=277627...

and

http://www.photobox.co.uk/my/photo?album_id=277627...

thanks in advance

Tame Technician

2,467 posts

203 months

Tuesday 16th September 2014
quotequote all
One failed coil pack will cause a vibration (misfire) but wont make the engine cut out.

All the coil packs failing at the same time, would make it cut out, but its all so unlikely I would suggest the fault is somthing else.

What did the code reader say? photo album not viewable

stef1808

Original Poster:

950 posts

156 months

Wednesday 17th September 2014
quotequote all
sorry im not great at uploading pictures here

and what you say makes sense, just ordered new coil packs so appreciate any help as could sell them on if not needed

I get these malfunctions:

00768 P0300 001
Random/multiple Cylinder
Misfire Detected
Intermittent

00770 P0302 001
Cyl.2
Misfire Detected
Intermittent

00772 P0304 001
Cyl. 4
Misfire Detected
Intermittent

and also

12424 P3088 001
Starter relay
Electrical error in circuit
Intermittent

00313 P0139 004
O2 Sensor Circ.,Bank1-Sensor2
Slow Response
Intermittent

08759 P2237 008
O2 Sensor Positive Current Control Circuit Bank 1 Sensor 1
Open
Intermittent




Edited by stef1808 on Wednesday 17th September 15:38

stef1808

Original Poster:

950 posts

156 months

Thursday 18th September 2014
quotequote all
any ideas ?

my latest problem to report is a rpm based whining noise which kinda sounds like its coming out the back right speaker.
its gets louder, more whinier as rpms increase
it comes and goes randomly

also there is a humming/buzzing noise